Bul. 186, Bureau of Plant Industry, U. S. Dept. of Agriculture. PLATE Il. 
FIG. 1.—SOFT FORM OF CROWN-GALL OF Fia. 2.—SOFT FORM OF CROWN-GALL OF 
THE APPLE, FROM INOCULATION WITH THE APPLE, FROM INOCULATION WITH 
ROSE GALLS. RASPBERRY GALLS. 
FIG. 3.—HARD FORM OF CROWN- FIG. 4.—HARD FORM OF FiG. 5.—HARD FORM OF 
GALL ON THE SCION PORTION CROWN-GALL AT THE CROWN-GALL SUR- 
OF ROOT-GRAFTED APPLE LOWER END OF THE ROUNDING THE UNION 
TREES. SCION IN A_ ROOT- IN A ROOT-GRAFTED 
GRAFTED APPLE T REE. APPLE TREE. 
